The effect of welding condition on the fatigue life of the joints was analyzed.
分析了焊接工艺条件对接头疲劳强度的影响。
Temperature field and residual stress field of orthogonal structure under normal welding and in-service welding condition were simulated by FEM.
运用有限元方法对正交接管结构在常规焊接和在线焊接条件下的温度场和残余应力场进行了数值模拟。
Under the experiment's welding condition, WCX355 ultrafine grained steels didn't distinctly embrittle in CGHAZ and didn't soften in tempering zone either.
在试验的焊接条件下，WCX355超细晶钢在热影响粗晶区未有明显脆化，在回火区也未发生软化现象。
Thermal simulating technology was adopted to study grain size and the precipitates distribution of CGHAZ for X80 pipeline steel with different welding condition.
采用热模拟技术研究了X80管线钢在不同焊接热循环条件下晶粒及第二相粒子的变化。
The coarse primary ferrite appeared in weld metal, and coarse bainite appeared in heat-affected zone under larger heat input welding condition, which caused low...
在较大焊接热输入条件下焊接，焊缝金属产生粗大先共析铁素体、过热区产生粗大粒状贝氏体，焊接接头低温冲击韧性因此降低。
The welding condition and welding material of D406A steel were recommended after that; the mechanical properties and microhardness of welded joint were also tested.
介绍了D406A钢的焊接工艺和焊接材料，对焊接接头的力学性能和显微硬度进行了测试。
It is shown that under suitable welding condition, the alloy can be welded well by using TIG arc welding and the welding wire having the same composition as the alloy.
结果表明，在一定的焊接工艺条件下，使用钨极氩弧焊和与母材同质的焊丝，可以对ZA12材料进行有效的焊接。
Effects of the change of chemical content on welding processing property is observed in the same welding condition by changing the content of different element in the flux core.
保持药芯中合金成分不变，改变药芯填料不同组分的含量，在相同的焊接条件下，观察了药芯组分含量变化对焊接工艺性能的影响。
Introduces the feature of the narrow gap welding, and analyses how to determine the form of groove, screen out submerged-arc welding flux and choose welding condition in detail.
介绍了窄间隙焊的特点，对坡口形式的确定、埋弧焊剂的筛选、焊接工艺参数的选择进行了详细分析。
Introduces the feature of the narrow gap welding, and analyses how to determine the form of groove, screen out submerged-arc welding flux and choose welding condition in detail.
介绍了窄间隙焊的特点，对坡口形式的确定、埋弧焊剂的筛选、焊接工艺参数的选择进行了详细分析。
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